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- PDB-3ba6: Structure of the Ca2E1P phosphoenzyme intermediate of the SERCA C... -

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Basic information

Entry
Database: PDB / ID: 3ba6
TitleStructure of the Ca2E1P phosphoenzyme intermediate of the SERCA Ca2+-ATPase
ComponentsSarcoplasmic/endoplasmic reticulum calcium ATPase 1
KeywordsHYDROLASE / membrane protein / P-type ATPase / phosphoenzyme / aspartyl-phosphoanhydride / Alternative splicing / ATP-binding / Calcium / Calcium transport / Endoplasmic reticulum / Ion transport / Magnesium / Metal-binding / Nucleotide-binding / Phosphorylation / Sarcoplasmic reticulum / Transmembrane / Transport
Function / homology
Function and homology information


positive regulation of cardiac muscle cell contraction / positive regulation of calcium ion import into sarcoplasmic reticulum / positive regulation of ATPase-coupled calcium transmembrane transporter activity / positive regulation of fast-twitch skeletal muscle fiber contraction / H zone / regulation of striated muscle contraction / calcium ion import into sarcoplasmic reticulum / negative regulation of striated muscle contraction / P-type Ca2+ transporter / P-type calcium transporter activity ...positive regulation of cardiac muscle cell contraction / positive regulation of calcium ion import into sarcoplasmic reticulum / positive regulation of ATPase-coupled calcium transmembrane transporter activity / positive regulation of fast-twitch skeletal muscle fiber contraction / H zone / regulation of striated muscle contraction / calcium ion import into sarcoplasmic reticulum / negative regulation of striated muscle contraction / P-type Ca2+ transporter / P-type calcium transporter activity / I band / endoplasmic reticulum-Golgi intermediate compartment / sarcoplasmic reticulum membrane / sarcoplasmic reticulum / calcium ion transport / calcium ion binding / endoplasmic reticulum membrane / perinuclear region of cytoplasm / endoplasmic reticulum / ATP hydrolysis activity / ATP binding / membrane
Similarity search - Function
Calcium-transporting ATPase, transmembrane domain / Calcium-transporting ATPase, transmembrane domain / P-type ATPase, subfamily IIA, SERCA-type / Calcium-transporting ATPase, cytoplasmic transduction domain A / Calcium-transporting ATPase, cytoplasmic transduction domain A / haloacid dehalogenase-like hydrolase / Calcium-transporting ATPase, cytoplasmic domain N / Calcium-transporting ATPase, cytoplasmic domain N / Cation-transporting P-type ATPase, C-terminal / Cation transporting ATPase, C-terminus ...Calcium-transporting ATPase, transmembrane domain / Calcium-transporting ATPase, transmembrane domain / P-type ATPase, subfamily IIA, SERCA-type / Calcium-transporting ATPase, cytoplasmic transduction domain A / Calcium-transporting ATPase, cytoplasmic transduction domain A / haloacid dehalogenase-like hydrolase / Calcium-transporting ATPase, cytoplasmic domain N / Calcium-transporting ATPase, cytoplasmic domain N / Cation-transporting P-type ATPase, C-terminal / Cation transporting ATPase, C-terminus / Cation transporter/ATPase, N-terminus / Cation-transporting P-type ATPase, N-terminal / Cation transporter/ATPase, N-terminus / P-type ATPase, cytoplasmic domain N / P-type ATPase actuator domain / HAD superfamily/HAD-like / P-type ATPase, haloacid dehalogenase domain / P-type ATPase, phosphorylation site / P-type ATPase, cytoplasmic domain N / E1-E2 ATPases phosphorylation site. / P-type ATPase, A domain superfamily / P-type ATPase / P-type ATPase, transmembrane domain superfamily / haloacid dehalogenase-like hydrolase / HAD superfamily / HAD-like superfamily / Distorted Sandwich / Up-down Bundle / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
AMP PHOSPHORAMIDATE / : / Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.8 Å
AuthorsPicard, M. / Winther, A.M.L. / Olesen, C. / Gyrup, C. / Morth, J.P. / Oxvig, C. / Moller, J.V. / Nissen, P.
CitationJournal: Nature / Year: 2007
Title: The structural basis of calcium transport by the calcium pump.
Authors: Olesen, C. / Picard, M. / Winther, A.M. / Gyrup, C. / Morth, J.P. / Oxvig, C. / Moller, J.V. / Nissen, P.
History
DepositionNov 7, 2007Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Dec 18, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Oct 25, 2017Group: Refinement description / Category: software
Item: _software.classification / _software.contact_author ..._software.classification / _software.contact_author / _software.contact_author_email / _software.date / _software.language / _software.location / _software.name / _software.type / _software.version
Revision 1.3Nov 1, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_conn_type / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn_type.id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Jun 4, 2025Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)110,2686
Polymers109,6831
Non-polymers5865
Water1629
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)162.510, 75.967, 152.407
Angle α, β, γ (deg.)90.000, 109.010, 90.000
Int Tables number5
Space group name H-MC121

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Components

#1: Protein Sarcoplasmic/endoplasmic reticulum calcium ATPase 1 / Calcium pump 1 / SERCA1 / SR Ca2+ / -ATPase 1 / Calcium-transporting ATPase sarcoplasmic reticulum ...Calcium pump 1 / SERCA1 / SR Ca2+ / -ATPase 1 / Calcium-transporting ATPase sarcoplasmic reticulum type / fast twitch skeletal muscle isoform / Endoplasmic reticulum class 1/2 Ca2+ / ATPase


Mass: 109682.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / Tissue: Fast twitch skeletal muscle / References: UniProt: P04191, EC: 3.6.3.8
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: K
#4: Chemical ChemComp-AN2 / AMP PHOSPHORAMIDATE


Mass: 426.216 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N6O9P2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 9 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY
Sequence detailsTHIS SEQUENCE IS ISOFORM SERCA1A.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 4.05 Å3/Da / Density % sol: 69.66 %
Crystal growTemperature: 292 K / Method: vapor diffusion, hanging drop / pH: 6.8
Details: 6% PEG6000, 200mM sodium acetate, 15% glycerol, 4% tert-butanol, 5mM b-mercaptoethanol, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 292K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID23-2 / Wavelength: 1.0723 Å
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Sep 18, 2006 / Details: Pt coated Si mirror
RadiationProtocol: SINGLE WAVELENGTH / Scattering type: x-ray
Radiation wavelengthWavelength: 1.0723 Å / Relative weight: 1
ReflectionResolution: 2.8→50 Å / Num. all: 41562 / Num. obs: 41562 / % possible obs: 94.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 5.7 % / Biso Wilson estimate: 74.6 Å2 / Rmerge(I) obs: 0.07 / Rsym value: 0.07 / Χ2: 1.085 / Net I/σ(I): 21
Reflection shellResolution: 2.8→2.9 Å / Redundancy: 5.1 % / Rmerge(I) obs: 0.509 / Mean I/σ(I) obs: 2 / Num. unique all: 3120 / Rsym value: 0.509 / Χ2: 0.857 / % possible all: 71.7

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACT3.004data extraction
DNAdata collection
HKL-2000data reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1T5S

1t5s


Resolution: 2.8→10 Å / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
Details: B-factor refinement was restrained as implemented in PHENIX
RfactorNum. reflection% reflectionSelection details
Rfree0.288 1180 2.94 %RANDOM
Rwork0.21 ---
all-40204 --
obs-40204 92 %-
Displacement parametersBiso mean: 74.36 Å2
Baniso -1Baniso -2Baniso -3
1--6.31 Å20 Å2-2.05 Å2
2--48.45 Å20 Å2
3----46 Å2
Refinement stepCycle: LAST / Resolution: 2.8→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7674 0 31 9 7714
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONf_bond_d0.009
X-RAY DIFFRACTIONf_angle_deg1.263
X-RAY DIFFRACTIONf_dihedral_angle_d19.792
LS refinement shellResolution: 2.8→2.92 Å / Total num. of bins used: 8
RfactorNum. reflection% reflection
Rfree0.3571 75 6.36 %
Rwork0.3175 --
obs-3756 72.6 %

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